Incredible miniature towns and buildings created and decorated with thousands of tiny rocks.

The mastermind behind this palatial hotel perished on the Titanic weeks before its grand opening.

An ancient city exhumed from the depths of the ocean.

An Aztec temple, the largest man-made pyramid in the world, sits buried in earth with a Spanish church set on top.

Houses are tucked between, on, and underneath giant boulders.

The largest Art Nouveau complex in the world is a Barcelona hospital with a 600-year-long history.

One man has carved a number of natural New Mexico caves into psychedelic sandstone temples.

Light still pours into the ruins of this ancient Islamic observatory.

A once-groundbreaking power plant turned into a hotel and mini-museum of archeological and geological wonders.

Inside the simple black-and-white exterior of Église Sainte-Cécile hides a pastel wonderland.

One man's dream has turned into this naturally growing chapel made of almost nothing but trees.

The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.

An eatery in a shallow river where diners can enjoy their meal mere feet from the base of an artificial waterfall.

A botanically themed auditorium blooms within the world’s last operating double-decker theater.

Inside this Krakow church, an explosion of psychedelic color.

Sacred waters rescued from the wrath of a volcano.

Lions carved into the rockface adorn these two tombs built into the mountains of Dadan.

Starting with nothing more than discarded conch shells, one man has built an island/bar that would make Jimmy Buffet jealous.

Two small chapels housed inside an ancient tree.

Made famous by 'Star Wars,' these troglodyte homes face an uncertain future.

This massive subterranean fissure is known as the "underground Grand Canyon."

Spend the night in this formerly abandoned traditional Scottish village.

A stately castle in the northern Italian countryside has been restored after years of neglect.

If there's another drive-through golf-cart bar in a bat-filled cave on top of a mountain, we don't know about it.